Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 96, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Dec 10, 2012, 5:08 PM EST for Volusia County, Florida. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 10, 2012, 5:08 PM EST (22:08 UTC)
- Expired
- Dec 10, 2012, 5:45 PM EST
- In force
- 37 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
County Volusia County, FL
The radar
The Jacksonville radar (KJAX), 130 km from the middle of the area, began a volume at 22:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 10.1 hours before the alert went out and 132 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
565
WUUS52 KMLB 102208
SVRMLB
FLC127-102245-
/O.NEW.KMLB.SV.W.0096.121210T2208Z-121210T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
508 PM EST MON DEC 10 2012
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN VOLUSIA COUNTY IN FLORIDA
* UNTIL 545 PM EST.
* AT 506 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE GEORGE...OR 9 MILES
NORTHWEST OF PIERSON...AND MOVING NORTHEAST AT 35 MPH.
THIS STORM HAS ALSO EXHIBITED WEAK ROTATION AND A FUNNEL CLOUD MAY
BE POSSIBLE.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
SEVILLE AND BAKERSTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
&&
LAT...LON 2929 8142 2921 8162 2930 8166 2931 8168
2932 8168 2934 8166 2938 8145 2940 8143
2940 8142
TIME...MOT...LOC 2208Z 242DEG 29KT 2931 8157
$$
SEDLOCK2 follow-up statements
472
WWUS52 KMLB 102221
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
521 PM EST MON DEC 10 2012
FLC127-102245-
/O.CON.KMLB.SV.W.0096.000000T0000Z-121210T2245Z/
VOLUSIA-
521 PM EST MON DEC 10 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EST
FOR NORTHWESTERN VOLUSIA COUNTY...
AT 516 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BAKERSTOWN...OR 8
MILES NORTHWEST OF PIERSON...MOVING NORTHEAST AT 30 MPH.
THIS STORM CONTINUES TO EXHIBIT ROTATION. FUNNELS CLOUDS WILL BE
POSSIBLE.
THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF ON OR NEAR LAKE GEORGE...GET OUT OF THE WATER AND MOVE INDOORS OR
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW.
DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!
&&
LAT...LON 2929 8142 2928 8154 2929 8157 2931 8159
2932 8161 2934 8162 2938 8145 2940 8143
2940 8142
TIME...MOT...LOC 2220Z 226DEG 28KT 2936 8151
$$
SEDLOCK727
WWUS52 KMLB 102236
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
536 PM EST MON DEC 10 2012
FLC127-102246-
/O.EXP.KMLB.SV.W.0096.000000T0000Z-121210T2245Z/
VOLUSIA-
536 PM EST MON DEC 10 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN VOLUSIA COUNTY
WILL EXPIRE AT 545 PM EST...
THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND EXITED
THE WARNING AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.
LAT...LON 2929 8142 2928 8154 2929 8157 2931 8159
2932 8161 2934 8162 2938 8145 2940 8143
2940 8142
TIME...MOT...LOC 2236Z 226DEG 28KT 2945 8141
$$
SEDLOCKThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 2:53 PM EST | Special Weather Statement | MLB | Okeechobee | 52 min |
| Dec 10, 3:39 PM EST | Special Weather Statement | MLB | Indian River, Okeechobee | 51 min |
| Dec 10, 3:50 PM EST | Special Weather Statement | MLB | Orange, Seminole | 55 min |
| Dec 10, 4:13 PM EST | Tornado Warning | MLB | Lake, Orange, Seminole | 47 min |
| Dec 10, 4:28 PM EST | Tornado Warning | MLB | Seminole, Volusia | 47 min |
| Dec 10, 4:29 PM EST | Special Weather Statement | MLB | Saint Lucie | 46 min |
| Dec 10, 4:33 PM EST | Special Marine Warning | MLB | 117 min | |
| Dec 10, 4:42 PM EST | Tornado Warning | MLB | Indian River, Saint Lucie | 48 min |
| Dec 10, 4:59 PM EST | Tornado Warning | MLB | Seminole, Volusia | 46 min |
| Dec 10, 5:02 PM EST | Tornado Warning | MLB | Volusia | 43 min |
| Dec 10, 5:09 PM EST | Tornado Warning | MLB | Seminole, Volusia | 21 min |
| Dec 10, 5:23 PM EST | Special Marine Warning | MLB | 112 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.